489913781

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{13807}}^1$

素因数の和:13988

約数の個数: 16

約数和(自身を含む): 579273216

約数和(自身を除く): 89359435

約数列:

[1, 7, 37, 137, 259, 959, 5069, 13807, 35483, 96649, 510859, 1891559, 3576013, 13240913, 69987683, 489913781]

約数ペア:

[(1, 489913781), (7, 69987683), (37, 13240913), (137, 3576013), (259, 1891559), (959, 510859), (5069, 96649), (13807, 35483)]